pip install requirements in folder

Introduction:
In this example, we have specified the versions of the requests, flask, and numpy packages.
Step 2: Installing Dependencies with pip install -r:
Step 3: Updating Dependencies:
Then, run:
The --upgrade flag ensures that if newer versions are available, they will be installed.
Step 4: Using Virtual Environments:
It's a good practice to use virtual environments to isolate your project's dependencies. Before running the pip install -r command, create a virtual environment:
Activate the virtual environment:
Then, proceed with the pip install -r command as described in Step 2.
Conclusion:
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